package com.liming.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/Logout")
public class LogoutServlet extends HttpServlet{
	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		
		req.getSession().removeAttribute("user");//清空session信息
		req.getSession().invalidate();//清除 session 中的所有信息
		
		resp.sendRedirect(req.getContextPath()+"/login.jsp");
		
	}
}
